Merge remote-tracking branches 'asoc/fix/rt5665', 'asoc/fix/simple', 'asoc/fix/sti...
[sfrench/cifs-2.6.git] / sound / soc / codecs / wm_adsp.c
1 /*
2  * wm_adsp.c  --  Wolfson ADSP support
3  *
4  * Copyright 2012 Wolfson Microelectronics plc
5  *
6  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  */
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/firmware.h>
18 #include <linux/list.h>
19 #include <linux/pm.h>
20 #include <linux/pm_runtime.h>
21 #include <linux/regmap.h>
22 #include <linux/regulator/consumer.h>
23 #include <linux/slab.h>
24 #include <linux/vmalloc.h>
25 #include <linux/workqueue.h>
26 #include <linux/debugfs.h>
27 #include <sound/core.h>
28 #include <sound/pcm.h>
29 #include <sound/pcm_params.h>
30 #include <sound/soc.h>
31 #include <sound/jack.h>
32 #include <sound/initval.h>
33 #include <sound/tlv.h>
34
35 #include "wm_adsp.h"
36
37 #define adsp_crit(_dsp, fmt, ...) \
38         dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
39 #define adsp_err(_dsp, fmt, ...) \
40         dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
41 #define adsp_warn(_dsp, fmt, ...) \
42         dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
43 #define adsp_info(_dsp, fmt, ...) \
44         dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
45 #define adsp_dbg(_dsp, fmt, ...) \
46         dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
47
48 #define ADSP1_CONTROL_1                   0x00
49 #define ADSP1_CONTROL_2                   0x02
50 #define ADSP1_CONTROL_3                   0x03
51 #define ADSP1_CONTROL_4                   0x04
52 #define ADSP1_CONTROL_5                   0x06
53 #define ADSP1_CONTROL_6                   0x07
54 #define ADSP1_CONTROL_7                   0x08
55 #define ADSP1_CONTROL_8                   0x09
56 #define ADSP1_CONTROL_9                   0x0A
57 #define ADSP1_CONTROL_10                  0x0B
58 #define ADSP1_CONTROL_11                  0x0C
59 #define ADSP1_CONTROL_12                  0x0D
60 #define ADSP1_CONTROL_13                  0x0F
61 #define ADSP1_CONTROL_14                  0x10
62 #define ADSP1_CONTROL_15                  0x11
63 #define ADSP1_CONTROL_16                  0x12
64 #define ADSP1_CONTROL_17                  0x13
65 #define ADSP1_CONTROL_18                  0x14
66 #define ADSP1_CONTROL_19                  0x16
67 #define ADSP1_CONTROL_20                  0x17
68 #define ADSP1_CONTROL_21                  0x18
69 #define ADSP1_CONTROL_22                  0x1A
70 #define ADSP1_CONTROL_23                  0x1B
71 #define ADSP1_CONTROL_24                  0x1C
72 #define ADSP1_CONTROL_25                  0x1E
73 #define ADSP1_CONTROL_26                  0x20
74 #define ADSP1_CONTROL_27                  0x21
75 #define ADSP1_CONTROL_28                  0x22
76 #define ADSP1_CONTROL_29                  0x23
77 #define ADSP1_CONTROL_30                  0x24
78 #define ADSP1_CONTROL_31                  0x26
79
80 /*
81  * ADSP1 Control 19
82  */
83 #define ADSP1_WDMA_BUFFER_LENGTH_MASK     0x00FF  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
84 #define ADSP1_WDMA_BUFFER_LENGTH_SHIFT         0  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
85 #define ADSP1_WDMA_BUFFER_LENGTH_WIDTH         8  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
86
87
88 /*
89  * ADSP1 Control 30
90  */
91 #define ADSP1_DBG_CLK_ENA                 0x0008  /* DSP1_DBG_CLK_ENA */
92 #define ADSP1_DBG_CLK_ENA_MASK            0x0008  /* DSP1_DBG_CLK_ENA */
93 #define ADSP1_DBG_CLK_ENA_SHIFT                3  /* DSP1_DBG_CLK_ENA */
94 #define ADSP1_DBG_CLK_ENA_WIDTH                1  /* DSP1_DBG_CLK_ENA */
95 #define ADSP1_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
96 #define ADSP1_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
97 #define ADSP1_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
98 #define ADSP1_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
99 #define ADSP1_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
100 #define ADSP1_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
101 #define ADSP1_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
102 #define ADSP1_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
103 #define ADSP1_START                       0x0001  /* DSP1_START */
104 #define ADSP1_START_MASK                  0x0001  /* DSP1_START */
105 #define ADSP1_START_SHIFT                      0  /* DSP1_START */
106 #define ADSP1_START_WIDTH                      1  /* DSP1_START */
107
108 /*
109  * ADSP1 Control 31
110  */
111 #define ADSP1_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
112 #define ADSP1_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
113 #define ADSP1_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
114
115 #define ADSP2_CONTROL        0x0
116 #define ADSP2_CLOCKING       0x1
117 #define ADSP2_STATUS1        0x4
118 #define ADSP2_WDMA_CONFIG_1 0x30
119 #define ADSP2_WDMA_CONFIG_2 0x31
120 #define ADSP2_RDMA_CONFIG_1 0x34
121
122 #define ADSP2_SCRATCH0        0x40
123 #define ADSP2_SCRATCH1        0x41
124 #define ADSP2_SCRATCH2        0x42
125 #define ADSP2_SCRATCH3        0x43
126
127 /*
128  * ADSP2 Control
129  */
130
131 #define ADSP2_MEM_ENA                     0x0010  /* DSP1_MEM_ENA */
132 #define ADSP2_MEM_ENA_MASK                0x0010  /* DSP1_MEM_ENA */
133 #define ADSP2_MEM_ENA_SHIFT                    4  /* DSP1_MEM_ENA */
134 #define ADSP2_MEM_ENA_WIDTH                    1  /* DSP1_MEM_ENA */
135 #define ADSP2_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
136 #define ADSP2_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
137 #define ADSP2_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
138 #define ADSP2_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
139 #define ADSP2_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
140 #define ADSP2_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
141 #define ADSP2_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
142 #define ADSP2_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
143 #define ADSP2_START                       0x0001  /* DSP1_START */
144 #define ADSP2_START_MASK                  0x0001  /* DSP1_START */
145 #define ADSP2_START_SHIFT                      0  /* DSP1_START */
146 #define ADSP2_START_WIDTH                      1  /* DSP1_START */
147
148 /*
149  * ADSP2 clocking
150  */
151 #define ADSP2_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
152 #define ADSP2_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
153 #define ADSP2_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
154
155 /*
156  * ADSP2 Status 1
157  */
158 #define ADSP2_RAM_RDY                     0x0001
159 #define ADSP2_RAM_RDY_MASK                0x0001
160 #define ADSP2_RAM_RDY_SHIFT                    0
161 #define ADSP2_RAM_RDY_WIDTH                    1
162
163 #define ADSP_MAX_STD_CTRL_SIZE               512
164
165 #define WM_ADSP_ACKED_CTL_TIMEOUT_MS         100
166 #define WM_ADSP_ACKED_CTL_N_QUICKPOLLS       10
167 #define WM_ADSP_ACKED_CTL_MIN_VALUE          0
168 #define WM_ADSP_ACKED_CTL_MAX_VALUE          0xFFFFFF
169
170 /*
171  * Event control messages
172  */
173 #define WM_ADSP_FW_EVENT_SHUTDOWN            0x000001
174
175 struct wm_adsp_buf {
176         struct list_head list;
177         void *buf;
178 };
179
180 static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
181                                              struct list_head *list)
182 {
183         struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
184
185         if (buf == NULL)
186                 return NULL;
187
188         buf->buf = vmalloc(len);
189         if (!buf->buf) {
190                 kfree(buf);
191                 return NULL;
192         }
193         memcpy(buf->buf, src, len);
194
195         if (list)
196                 list_add_tail(&buf->list, list);
197
198         return buf;
199 }
200
201 static void wm_adsp_buf_free(struct list_head *list)
202 {
203         while (!list_empty(list)) {
204                 struct wm_adsp_buf *buf = list_first_entry(list,
205                                                            struct wm_adsp_buf,
206                                                            list);
207                 list_del(&buf->list);
208                 vfree(buf->buf);
209                 kfree(buf);
210         }
211 }
212
213 #define WM_ADSP_FW_MBC_VSS  0
214 #define WM_ADSP_FW_HIFI     1
215 #define WM_ADSP_FW_TX       2
216 #define WM_ADSP_FW_TX_SPK   3
217 #define WM_ADSP_FW_RX       4
218 #define WM_ADSP_FW_RX_ANC   5
219 #define WM_ADSP_FW_CTRL     6
220 #define WM_ADSP_FW_ASR      7
221 #define WM_ADSP_FW_TRACE    8
222 #define WM_ADSP_FW_SPK_PROT 9
223 #define WM_ADSP_FW_MISC     10
224
225 #define WM_ADSP_NUM_FW      11
226
227 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
228         [WM_ADSP_FW_MBC_VSS] =  "MBC/VSS",
229         [WM_ADSP_FW_HIFI] =     "MasterHiFi",
230         [WM_ADSP_FW_TX] =       "Tx",
231         [WM_ADSP_FW_TX_SPK] =   "Tx Speaker",
232         [WM_ADSP_FW_RX] =       "Rx",
233         [WM_ADSP_FW_RX_ANC] =   "Rx ANC",
234         [WM_ADSP_FW_CTRL] =     "Voice Ctrl",
235         [WM_ADSP_FW_ASR] =      "ASR Assist",
236         [WM_ADSP_FW_TRACE] =    "Dbg Trace",
237         [WM_ADSP_FW_SPK_PROT] = "Protection",
238         [WM_ADSP_FW_MISC] =     "Misc",
239 };
240
241 struct wm_adsp_system_config_xm_hdr {
242         __be32 sys_enable;
243         __be32 fw_id;
244         __be32 fw_rev;
245         __be32 boot_status;
246         __be32 watchdog;
247         __be32 dma_buffer_size;
248         __be32 rdma[6];
249         __be32 wdma[8];
250         __be32 build_job_name[3];
251         __be32 build_job_number;
252 };
253
254 struct wm_adsp_alg_xm_struct {
255         __be32 magic;
256         __be32 smoothing;
257         __be32 threshold;
258         __be32 host_buf_ptr;
259         __be32 start_seq;
260         __be32 high_water_mark;
261         __be32 low_water_mark;
262         __be64 smoothed_power;
263 };
264
265 struct wm_adsp_buffer {
266         __be32 X_buf_base;              /* XM base addr of first X area */
267         __be32 X_buf_size;              /* Size of 1st X area in words */
268         __be32 X_buf_base2;             /* XM base addr of 2nd X area */
269         __be32 X_buf_brk;               /* Total X size in words */
270         __be32 Y_buf_base;              /* YM base addr of Y area */
271         __be32 wrap;                    /* Total size X and Y in words */
272         __be32 high_water_mark;         /* Point at which IRQ is asserted */
273         __be32 irq_count;               /* bits 1-31 count IRQ assertions */
274         __be32 irq_ack;                 /* acked IRQ count, bit 0 enables IRQ */
275         __be32 next_write_index;        /* word index of next write */
276         __be32 next_read_index;         /* word index of next read */
277         __be32 error;                   /* error if any */
278         __be32 oldest_block_index;      /* word index of oldest surviving */
279         __be32 requested_rewind;        /* how many blocks rewind was done */
280         __be32 reserved_space;          /* internal */
281         __be32 min_free;                /* min free space since stream start */
282         __be32 blocks_written[2];       /* total blocks written (64 bit) */
283         __be32 words_written[2];        /* total words written (64 bit) */
284 };
285
286 struct wm_adsp_compr;
287
288 struct wm_adsp_compr_buf {
289         struct wm_adsp *dsp;
290         struct wm_adsp_compr *compr;
291
292         struct wm_adsp_buffer_region *regions;
293         u32 host_buf_ptr;
294
295         u32 error;
296         u32 irq_count;
297         int read_index;
298         int avail;
299 };
300
301 struct wm_adsp_compr {
302         struct wm_adsp *dsp;
303         struct wm_adsp_compr_buf *buf;
304
305         struct snd_compr_stream *stream;
306         struct snd_compressed_buffer size;
307
308         u32 *raw_buf;
309         unsigned int copied_total;
310
311         unsigned int sample_rate;
312 };
313
314 #define WM_ADSP_DATA_WORD_SIZE         3
315
316 #define WM_ADSP_MIN_FRAGMENTS          1
317 #define WM_ADSP_MAX_FRAGMENTS          256
318 #define WM_ADSP_MIN_FRAGMENT_SIZE      (64 * WM_ADSP_DATA_WORD_SIZE)
319 #define WM_ADSP_MAX_FRAGMENT_SIZE      (4096 * WM_ADSP_DATA_WORD_SIZE)
320
321 #define WM_ADSP_ALG_XM_STRUCT_MAGIC    0x49aec7
322
323 #define HOST_BUFFER_FIELD(field) \
324         (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
325
326 #define ALG_XM_FIELD(field) \
327         (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
328
329 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
330 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
331
332 struct wm_adsp_buffer_region {
333         unsigned int offset;
334         unsigned int cumulative_size;
335         unsigned int mem_type;
336         unsigned int base_addr;
337 };
338
339 struct wm_adsp_buffer_region_def {
340         unsigned int mem_type;
341         unsigned int base_offset;
342         unsigned int size_offset;
343 };
344
345 static const struct wm_adsp_buffer_region_def default_regions[] = {
346         {
347                 .mem_type = WMFW_ADSP2_XM,
348                 .base_offset = HOST_BUFFER_FIELD(X_buf_base),
349                 .size_offset = HOST_BUFFER_FIELD(X_buf_size),
350         },
351         {
352                 .mem_type = WMFW_ADSP2_XM,
353                 .base_offset = HOST_BUFFER_FIELD(X_buf_base2),
354                 .size_offset = HOST_BUFFER_FIELD(X_buf_brk),
355         },
356         {
357                 .mem_type = WMFW_ADSP2_YM,
358                 .base_offset = HOST_BUFFER_FIELD(Y_buf_base),
359                 .size_offset = HOST_BUFFER_FIELD(wrap),
360         },
361 };
362
363 struct wm_adsp_fw_caps {
364         u32 id;
365         struct snd_codec_desc desc;
366         int num_regions;
367         const struct wm_adsp_buffer_region_def *region_defs;
368 };
369
370 static const struct wm_adsp_fw_caps ctrl_caps[] = {
371         {
372                 .id = SND_AUDIOCODEC_BESPOKE,
373                 .desc = {
374                         .max_ch = 1,
375                         .sample_rates = { 16000 },
376                         .num_sample_rates = 1,
377                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
378                 },
379                 .num_regions = ARRAY_SIZE(default_regions),
380                 .region_defs = default_regions,
381         },
382 };
383
384 static const struct wm_adsp_fw_caps trace_caps[] = {
385         {
386                 .id = SND_AUDIOCODEC_BESPOKE,
387                 .desc = {
388                         .max_ch = 8,
389                         .sample_rates = {
390                                 4000, 8000, 11025, 12000, 16000, 22050,
391                                 24000, 32000, 44100, 48000, 64000, 88200,
392                                 96000, 176400, 192000
393                         },
394                         .num_sample_rates = 15,
395                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
396                 },
397                 .num_regions = ARRAY_SIZE(default_regions),
398                 .region_defs = default_regions,
399         },
400 };
401
402 static const struct {
403         const char *file;
404         int compr_direction;
405         int num_caps;
406         const struct wm_adsp_fw_caps *caps;
407         bool voice_trigger;
408 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
409         [WM_ADSP_FW_MBC_VSS] =  { .file = "mbc-vss" },
410         [WM_ADSP_FW_HIFI] =     { .file = "hifi" },
411         [WM_ADSP_FW_TX] =       { .file = "tx" },
412         [WM_ADSP_FW_TX_SPK] =   { .file = "tx-spk" },
413         [WM_ADSP_FW_RX] =       { .file = "rx" },
414         [WM_ADSP_FW_RX_ANC] =   { .file = "rx-anc" },
415         [WM_ADSP_FW_CTRL] =     {
416                 .file = "ctrl",
417                 .compr_direction = SND_COMPRESS_CAPTURE,
418                 .num_caps = ARRAY_SIZE(ctrl_caps),
419                 .caps = ctrl_caps,
420                 .voice_trigger = true,
421         },
422         [WM_ADSP_FW_ASR] =      { .file = "asr" },
423         [WM_ADSP_FW_TRACE] =    {
424                 .file = "trace",
425                 .compr_direction = SND_COMPRESS_CAPTURE,
426                 .num_caps = ARRAY_SIZE(trace_caps),
427                 .caps = trace_caps,
428         },
429         [WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
430         [WM_ADSP_FW_MISC] =     { .file = "misc" },
431 };
432
433 struct wm_coeff_ctl_ops {
434         int (*xget)(struct snd_kcontrol *kcontrol,
435                     struct snd_ctl_elem_value *ucontrol);
436         int (*xput)(struct snd_kcontrol *kcontrol,
437                     struct snd_ctl_elem_value *ucontrol);
438         int (*xinfo)(struct snd_kcontrol *kcontrol,
439                      struct snd_ctl_elem_info *uinfo);
440 };
441
442 struct wm_coeff_ctl {
443         const char *name;
444         const char *fw_name;
445         struct wm_adsp_alg_region alg_region;
446         struct wm_coeff_ctl_ops ops;
447         struct wm_adsp *dsp;
448         unsigned int enabled:1;
449         struct list_head list;
450         void *cache;
451         unsigned int offset;
452         size_t len;
453         unsigned int set:1;
454         struct soc_bytes_ext bytes_ext;
455         unsigned int flags;
456         unsigned int type;
457 };
458
459 static const char *wm_adsp_mem_region_name(unsigned int type)
460 {
461         switch (type) {
462         case WMFW_ADSP1_PM:
463                 return "PM";
464         case WMFW_ADSP1_DM:
465                 return "DM";
466         case WMFW_ADSP2_XM:
467                 return "XM";
468         case WMFW_ADSP2_YM:
469                 return "YM";
470         case WMFW_ADSP1_ZM:
471                 return "ZM";
472         default:
473                 return NULL;
474         }
475 }
476
477 #ifdef CONFIG_DEBUG_FS
478 static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
479 {
480         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
481
482         kfree(dsp->wmfw_file_name);
483         dsp->wmfw_file_name = tmp;
484 }
485
486 static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
487 {
488         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
489
490         kfree(dsp->bin_file_name);
491         dsp->bin_file_name = tmp;
492 }
493
494 static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
495 {
496         kfree(dsp->wmfw_file_name);
497         kfree(dsp->bin_file_name);
498         dsp->wmfw_file_name = NULL;
499         dsp->bin_file_name = NULL;
500 }
501
502 static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
503                                          char __user *user_buf,
504                                          size_t count, loff_t *ppos)
505 {
506         struct wm_adsp *dsp = file->private_data;
507         ssize_t ret;
508
509         mutex_lock(&dsp->pwr_lock);
510
511         if (!dsp->wmfw_file_name || !dsp->booted)
512                 ret = 0;
513         else
514                 ret = simple_read_from_buffer(user_buf, count, ppos,
515                                               dsp->wmfw_file_name,
516                                               strlen(dsp->wmfw_file_name));
517
518         mutex_unlock(&dsp->pwr_lock);
519         return ret;
520 }
521
522 static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
523                                         char __user *user_buf,
524                                         size_t count, loff_t *ppos)
525 {
526         struct wm_adsp *dsp = file->private_data;
527         ssize_t ret;
528
529         mutex_lock(&dsp->pwr_lock);
530
531         if (!dsp->bin_file_name || !dsp->booted)
532                 ret = 0;
533         else
534                 ret = simple_read_from_buffer(user_buf, count, ppos,
535                                               dsp->bin_file_name,
536                                               strlen(dsp->bin_file_name));
537
538         mutex_unlock(&dsp->pwr_lock);
539         return ret;
540 }
541
542 static const struct {
543         const char *name;
544         const struct file_operations fops;
545 } wm_adsp_debugfs_fops[] = {
546         {
547                 .name = "wmfw_file_name",
548                 .fops = {
549                         .open = simple_open,
550                         .read = wm_adsp_debugfs_wmfw_read,
551                 },
552         },
553         {
554                 .name = "bin_file_name",
555                 .fops = {
556                         .open = simple_open,
557                         .read = wm_adsp_debugfs_bin_read,
558                 },
559         },
560 };
561
562 static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
563                                   struct snd_soc_codec *codec)
564 {
565         struct dentry *root = NULL;
566         char *root_name;
567         int i;
568
569         if (!codec->component.debugfs_root) {
570                 adsp_err(dsp, "No codec debugfs root\n");
571                 goto err;
572         }
573
574         root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
575         if (!root_name)
576                 goto err;
577
578         snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
579         root = debugfs_create_dir(root_name, codec->component.debugfs_root);
580         kfree(root_name);
581
582         if (!root)
583                 goto err;
584
585         if (!debugfs_create_bool("booted", S_IRUGO, root, &dsp->booted))
586                 goto err;
587
588         if (!debugfs_create_bool("running", S_IRUGO, root, &dsp->running))
589                 goto err;
590
591         if (!debugfs_create_x32("fw_id", S_IRUGO, root, &dsp->fw_id))
592                 goto err;
593
594         if (!debugfs_create_x32("fw_version", S_IRUGO, root,
595                                 &dsp->fw_id_version))
596                 goto err;
597
598         for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i) {
599                 if (!debugfs_create_file(wm_adsp_debugfs_fops[i].name,
600                                          S_IRUGO, root, dsp,
601                                          &wm_adsp_debugfs_fops[i].fops))
602                         goto err;
603         }
604
605         dsp->debugfs_root = root;
606         return;
607
608 err:
609         debugfs_remove_recursive(root);
610         adsp_err(dsp, "Failed to create debugfs\n");
611 }
612
613 static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
614 {
615         wm_adsp_debugfs_clear(dsp);
616         debugfs_remove_recursive(dsp->debugfs_root);
617 }
618 #else
619 static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
620                                          struct snd_soc_codec *codec)
621 {
622 }
623
624 static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
625 {
626 }
627
628 static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
629                                                  const char *s)
630 {
631 }
632
633 static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
634                                                 const char *s)
635 {
636 }
637
638 static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
639 {
640 }
641 #endif
642
643 static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
644                           struct snd_ctl_elem_value *ucontrol)
645 {
646         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
647         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
648         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
649
650         ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
651
652         return 0;
653 }
654
655 static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
656                           struct snd_ctl_elem_value *ucontrol)
657 {
658         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
659         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
660         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
661         int ret = 0;
662
663         if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
664                 return 0;
665
666         if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
667                 return -EINVAL;
668
669         mutex_lock(&dsp[e->shift_l].pwr_lock);
670
671         if (dsp[e->shift_l].booted || dsp[e->shift_l].compr)
672                 ret = -EBUSY;
673         else
674                 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
675
676         mutex_unlock(&dsp[e->shift_l].pwr_lock);
677
678         return ret;
679 }
680
681 static const struct soc_enum wm_adsp_fw_enum[] = {
682         SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
683         SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
684         SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
685         SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
686 };
687
688 const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
689         SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
690                      wm_adsp_fw_get, wm_adsp_fw_put),
691         SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
692                      wm_adsp_fw_get, wm_adsp_fw_put),
693         SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
694                      wm_adsp_fw_get, wm_adsp_fw_put),
695         SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
696                      wm_adsp_fw_get, wm_adsp_fw_put),
697 };
698 EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
699
700 static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
701                                                         int type)
702 {
703         int i;
704
705         for (i = 0; i < dsp->num_mems; i++)
706                 if (dsp->mem[i].type == type)
707                         return &dsp->mem[i];
708
709         return NULL;
710 }
711
712 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
713                                           unsigned int offset)
714 {
715         if (WARN_ON(!mem))
716                 return offset;
717         switch (mem->type) {
718         case WMFW_ADSP1_PM:
719                 return mem->base + (offset * 3);
720         case WMFW_ADSP1_DM:
721                 return mem->base + (offset * 2);
722         case WMFW_ADSP2_XM:
723                 return mem->base + (offset * 2);
724         case WMFW_ADSP2_YM:
725                 return mem->base + (offset * 2);
726         case WMFW_ADSP1_ZM:
727                 return mem->base + (offset * 2);
728         default:
729                 WARN(1, "Unknown memory region type");
730                 return offset;
731         }
732 }
733
734 static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
735 {
736         u16 scratch[4];
737         int ret;
738
739         ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
740                                 scratch, sizeof(scratch));
741         if (ret) {
742                 adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
743                 return;
744         }
745
746         adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
747                  be16_to_cpu(scratch[0]),
748                  be16_to_cpu(scratch[1]),
749                  be16_to_cpu(scratch[2]),
750                  be16_to_cpu(scratch[3]));
751 }
752
753 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
754 {
755         return container_of(ext, struct wm_coeff_ctl, bytes_ext);
756 }
757
758 static int wm_coeff_base_reg(struct wm_coeff_ctl *ctl, unsigned int *reg)
759 {
760         const struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
761         struct wm_adsp *dsp = ctl->dsp;
762         const struct wm_adsp_region *mem;
763
764         mem = wm_adsp_find_region(dsp, alg_region->type);
765         if (!mem) {
766                 adsp_err(dsp, "No base for region %x\n",
767                          alg_region->type);
768                 return -EINVAL;
769         }
770
771         *reg = wm_adsp_region_to_reg(mem, ctl->alg_region.base + ctl->offset);
772
773         return 0;
774 }
775
776 static int wm_coeff_info(struct snd_kcontrol *kctl,
777                          struct snd_ctl_elem_info *uinfo)
778 {
779         struct soc_bytes_ext *bytes_ext =
780                 (struct soc_bytes_ext *)kctl->private_value;
781         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
782
783         switch (ctl->type) {
784         case WMFW_CTL_TYPE_ACKED:
785                 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
786                 uinfo->value.integer.min = WM_ADSP_ACKED_CTL_MIN_VALUE;
787                 uinfo->value.integer.max = WM_ADSP_ACKED_CTL_MAX_VALUE;
788                 uinfo->value.integer.step = 1;
789                 uinfo->count = 1;
790                 break;
791         default:
792                 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
793                 uinfo->count = ctl->len;
794                 break;
795         }
796
797         return 0;
798 }
799
800 static int wm_coeff_write_acked_control(struct wm_coeff_ctl *ctl,
801                                         unsigned int event_id)
802 {
803         struct wm_adsp *dsp = ctl->dsp;
804         u32 val = cpu_to_be32(event_id);
805         unsigned int reg;
806         int i, ret;
807
808         ret = wm_coeff_base_reg(ctl, &reg);
809         if (ret)
810                 return ret;
811
812         adsp_dbg(dsp, "Sending 0x%x to acked control alg 0x%x %s:0x%x\n",
813                  event_id, ctl->alg_region.alg,
814                  wm_adsp_mem_region_name(ctl->alg_region.type), ctl->offset);
815
816         ret = regmap_raw_write(dsp->regmap, reg, &val, sizeof(val));
817         if (ret) {
818                 adsp_err(dsp, "Failed to write %x: %d\n", reg, ret);
819                 return ret;
820         }
821
822         /*
823          * Poll for ack, we initially poll at ~1ms intervals for firmwares
824          * that respond quickly, then go to ~10ms polls. A firmware is unlikely
825          * to ack instantly so we do the first 1ms delay before reading the
826          * control to avoid a pointless bus transaction
827          */
828         for (i = 0; i < WM_ADSP_ACKED_CTL_TIMEOUT_MS;) {
829                 switch (i) {
830                 case 0 ... WM_ADSP_ACKED_CTL_N_QUICKPOLLS - 1:
831                         usleep_range(1000, 2000);
832                         i++;
833                         break;
834                 default:
835                         usleep_range(10000, 20000);
836                         i += 10;
837                         break;
838                 }
839
840                 ret = regmap_raw_read(dsp->regmap, reg, &val, sizeof(val));
841                 if (ret) {
842                         adsp_err(dsp, "Failed to read %x: %d\n", reg, ret);
843                         return ret;
844                 }
845
846                 if (val == 0) {
847                         adsp_dbg(dsp, "Acked control ACKED at poll %u\n", i);
848                         return 0;
849                 }
850         }
851
852         adsp_warn(dsp, "Acked control @0x%x alg:0x%x %s:0x%x timed out\n",
853                   reg, ctl->alg_region.alg,
854                   wm_adsp_mem_region_name(ctl->alg_region.type),
855                   ctl->offset);
856
857         return -ETIMEDOUT;
858 }
859
860 static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
861                                   const void *buf, size_t len)
862 {
863         struct wm_adsp *dsp = ctl->dsp;
864         void *scratch;
865         int ret;
866         unsigned int reg;
867
868         ret = wm_coeff_base_reg(ctl, &reg);
869         if (ret)
870                 return ret;
871
872         scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
873         if (!scratch)
874                 return -ENOMEM;
875
876         ret = regmap_raw_write(dsp->regmap, reg, scratch,
877                                len);
878         if (ret) {
879                 adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
880                          len, reg, ret);
881                 kfree(scratch);
882                 return ret;
883         }
884         adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
885
886         kfree(scratch);
887
888         return 0;
889 }
890
891 static int wm_coeff_put(struct snd_kcontrol *kctl,
892                         struct snd_ctl_elem_value *ucontrol)
893 {
894         struct soc_bytes_ext *bytes_ext =
895                 (struct soc_bytes_ext *)kctl->private_value;
896         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
897         char *p = ucontrol->value.bytes.data;
898         int ret = 0;
899
900         mutex_lock(&ctl->dsp->pwr_lock);
901
902         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
903                 ret = -EPERM;
904         else
905                 memcpy(ctl->cache, p, ctl->len);
906
907         ctl->set = 1;
908         if (ctl->enabled && ctl->dsp->running)
909                 ret = wm_coeff_write_control(ctl, p, ctl->len);
910
911         mutex_unlock(&ctl->dsp->pwr_lock);
912
913         return ret;
914 }
915
916 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
917                             const unsigned int __user *bytes, unsigned int size)
918 {
919         struct soc_bytes_ext *bytes_ext =
920                 (struct soc_bytes_ext *)kctl->private_value;
921         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
922         int ret = 0;
923
924         mutex_lock(&ctl->dsp->pwr_lock);
925
926         if (copy_from_user(ctl->cache, bytes, size)) {
927                 ret = -EFAULT;
928         } else {
929                 ctl->set = 1;
930                 if (ctl->enabled && ctl->dsp->running)
931                         ret = wm_coeff_write_control(ctl, ctl->cache, size);
932                 else if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
933                         ret = -EPERM;
934         }
935
936         mutex_unlock(&ctl->dsp->pwr_lock);
937
938         return ret;
939 }
940
941 static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
942                               struct snd_ctl_elem_value *ucontrol)
943 {
944         struct soc_bytes_ext *bytes_ext =
945                 (struct soc_bytes_ext *)kctl->private_value;
946         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
947         unsigned int val = ucontrol->value.integer.value[0];
948         int ret;
949
950         if (val == 0)
951                 return 0;       /* 0 means no event */
952
953         mutex_lock(&ctl->dsp->pwr_lock);
954
955         if (ctl->enabled && ctl->dsp->running)
956                 ret = wm_coeff_write_acked_control(ctl, val);
957         else
958                 ret = -EPERM;
959
960         mutex_unlock(&ctl->dsp->pwr_lock);
961
962         return ret;
963 }
964
965 static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
966                                  void *buf, size_t len)
967 {
968         struct wm_adsp *dsp = ctl->dsp;
969         void *scratch;
970         int ret;
971         unsigned int reg;
972
973         ret = wm_coeff_base_reg(ctl, &reg);
974         if (ret)
975                 return ret;
976
977         scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
978         if (!scratch)
979                 return -ENOMEM;
980
981         ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
982         if (ret) {
983                 adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
984                          len, reg, ret);
985                 kfree(scratch);
986                 return ret;
987         }
988         adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
989
990         memcpy(buf, scratch, len);
991         kfree(scratch);
992
993         return 0;
994 }
995
996 static int wm_coeff_get(struct snd_kcontrol *kctl,
997                         struct snd_ctl_elem_value *ucontrol)
998 {
999         struct soc_bytes_ext *bytes_ext =
1000                 (struct soc_bytes_ext *)kctl->private_value;
1001         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
1002         char *p = ucontrol->value.bytes.data;
1003         int ret = 0;
1004
1005         mutex_lock(&ctl->dsp->pwr_lock);
1006
1007         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
1008                 if (ctl->enabled && ctl->dsp->running)
1009                         ret = wm_coeff_read_control(ctl, p, ctl->len);
1010                 else
1011                         ret = -EPERM;
1012         } else {
1013                 if (!ctl->flags && ctl->enabled && ctl->dsp->running)
1014                         ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
1015
1016                 memcpy(p, ctl->cache, ctl->len);
1017         }
1018
1019         mutex_unlock(&ctl->dsp->pwr_lock);
1020
1021         return ret;
1022 }
1023
1024 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
1025                             unsigned int __user *bytes, unsigned int size)
1026 {
1027         struct soc_bytes_ext *bytes_ext =
1028                 (struct soc_bytes_ext *)kctl->private_value;
1029         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
1030         int ret = 0;
1031
1032         mutex_lock(&ctl->dsp->pwr_lock);
1033
1034         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
1035                 if (ctl->enabled && ctl->dsp->running)
1036                         ret = wm_coeff_read_control(ctl, ctl->cache, size);
1037                 else
1038                         ret = -EPERM;
1039         } else {
1040                 if (!ctl->flags && ctl->enabled && ctl->dsp->running)
1041                         ret = wm_coeff_read_control(ctl, ctl->cache, size);
1042         }
1043
1044         if (!ret && copy_to_user(bytes, ctl->cache, size))
1045                 ret = -EFAULT;
1046
1047         mutex_unlock(&ctl->dsp->pwr_lock);
1048
1049         return ret;
1050 }
1051
1052 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
1053                               struct snd_ctl_elem_value *ucontrol)
1054 {
1055         /*
1056          * Although it's not useful to read an acked control, we must satisfy
1057          * user-side assumptions that all controls are readable and that a
1058          * write of the same value should be filtered out (it's valid to send
1059          * the same event number again to the firmware). We therefore return 0,
1060          * meaning "no event" so valid event numbers will always be a change
1061          */
1062         ucontrol->value.integer.value[0] = 0;
1063
1064         return 0;
1065 }
1066
1067 struct wmfw_ctl_work {
1068         struct wm_adsp *dsp;
1069         struct wm_coeff_ctl *ctl;
1070         struct work_struct work;
1071 };
1072
1073 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
1074 {
1075         unsigned int out, rd, wr, vol;
1076
1077         if (len > ADSP_MAX_STD_CTRL_SIZE) {
1078                 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1079                 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
1080                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
1081
1082                 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
1083         } else {
1084                 rd = SNDRV_CTL_ELEM_ACCESS_READ;
1085                 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
1086                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
1087
1088                 out = 0;
1089         }
1090
1091         if (in) {
1092                 if (in & WMFW_CTL_FLAG_READABLE)
1093                         out |= rd;
1094                 if (in & WMFW_CTL_FLAG_WRITEABLE)
1095                         out |= wr;
1096                 if (in & WMFW_CTL_FLAG_VOLATILE)
1097                         out |= vol;
1098         } else {
1099                 out |= rd | wr | vol;
1100         }
1101
1102         return out;
1103 }
1104
1105 static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
1106 {
1107         struct snd_kcontrol_new *kcontrol;
1108         int ret;
1109
1110         if (!ctl || !ctl->name)
1111                 return -EINVAL;
1112
1113         kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
1114         if (!kcontrol)
1115                 return -ENOMEM;
1116
1117         kcontrol->name = ctl->name;
1118         kcontrol->info = wm_coeff_info;
1119         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1120         kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
1121         kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
1122         kcontrol->access = wmfw_convert_flags(ctl->flags, ctl->len);
1123
1124         switch (ctl->type) {
1125         case WMFW_CTL_TYPE_ACKED:
1126                 kcontrol->get = wm_coeff_get_acked;
1127                 kcontrol->put = wm_coeff_put_acked;
1128                 break;
1129         default:
1130                 kcontrol->get = wm_coeff_get;
1131                 kcontrol->put = wm_coeff_put;
1132
1133                 ctl->bytes_ext.max = ctl->len;
1134                 ctl->bytes_ext.get = wm_coeff_tlv_get;
1135                 ctl->bytes_ext.put = wm_coeff_tlv_put;
1136                 break;
1137         }
1138
1139         ret = snd_soc_add_codec_controls(dsp->codec, kcontrol, 1);
1140         if (ret < 0)
1141                 goto err_kcontrol;
1142
1143         kfree(kcontrol);
1144
1145         return 0;
1146
1147 err_kcontrol:
1148         kfree(kcontrol);
1149         return ret;
1150 }
1151
1152 static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
1153 {
1154         struct wm_coeff_ctl *ctl;
1155         int ret;
1156
1157         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1158                 if (!ctl->enabled || ctl->set)
1159                         continue;
1160                 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
1161                         continue;
1162
1163                 ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
1164                 if (ret < 0)
1165                         return ret;
1166         }
1167
1168         return 0;
1169 }
1170
1171 static int wm_coeff_sync_controls(struct wm_adsp *dsp)
1172 {
1173         struct wm_coeff_ctl *ctl;
1174         int ret;
1175
1176         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1177                 if (!ctl->enabled)
1178                         continue;
1179                 if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
1180                         ret = wm_coeff_write_control(ctl, ctl->cache, ctl->len);
1181                         if (ret < 0)
1182                                 return ret;
1183                 }
1184         }
1185
1186         return 0;
1187 }
1188
1189 static void wm_adsp_signal_event_controls(struct wm_adsp *dsp,
1190                                           unsigned int event)
1191 {
1192         struct wm_coeff_ctl *ctl;
1193         int ret;
1194
1195         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1196                 if (ctl->type != WMFW_CTL_TYPE_HOSTEVENT)
1197                         continue;
1198
1199                 if (!ctl->enabled)
1200                         continue;
1201
1202                 ret = wm_coeff_write_acked_control(ctl, event);
1203                 if (ret)
1204                         adsp_warn(dsp,
1205                                   "Failed to send 0x%x event to alg 0x%x (%d)\n",
1206                                   event, ctl->alg_region.alg, ret);
1207         }
1208 }
1209
1210 static void wm_adsp_ctl_work(struct work_struct *work)
1211 {
1212         struct wmfw_ctl_work *ctl_work = container_of(work,
1213                                                       struct wmfw_ctl_work,
1214                                                       work);
1215
1216         wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
1217         kfree(ctl_work);
1218 }
1219
1220 static void wm_adsp_free_ctl_blk(struct wm_coeff_ctl *ctl)
1221 {
1222         kfree(ctl->cache);
1223         kfree(ctl->name);
1224         kfree(ctl);
1225 }
1226
1227 static int wm_adsp_create_control(struct wm_adsp *dsp,
1228                                   const struct wm_adsp_alg_region *alg_region,
1229                                   unsigned int offset, unsigned int len,
1230                                   const char *subname, unsigned int subname_len,
1231                                   unsigned int flags, unsigned int type)
1232 {
1233         struct wm_coeff_ctl *ctl;
1234         struct wmfw_ctl_work *ctl_work;
1235         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1236         const char *region_name;
1237         int ret;
1238
1239         region_name = wm_adsp_mem_region_name(alg_region->type);
1240         if (!region_name) {
1241                 adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
1242                 return -EINVAL;
1243         }
1244
1245         switch (dsp->fw_ver) {
1246         case 0:
1247         case 1:
1248                 snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
1249                          dsp->num, region_name, alg_region->alg);
1250                 break;
1251         default:
1252                 ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
1253                                 "DSP%d%c %.12s %x", dsp->num, *region_name,
1254                                 wm_adsp_fw_text[dsp->fw], alg_region->alg);
1255
1256                 /* Truncate the subname from the start if it is too long */
1257                 if (subname) {
1258                         int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
1259                         int skip = 0;
1260
1261                         if (subname_len > avail)
1262                                 skip = subname_len - avail;
1263
1264                         snprintf(name + ret,
1265                                  SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, " %.*s",
1266                                  subname_len - skip, subname + skip);
1267                 }
1268                 break;
1269         }
1270
1271         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1272                 if (!strcmp(ctl->name, name)) {
1273                         if (!ctl->enabled)
1274                                 ctl->enabled = 1;
1275                         return 0;
1276                 }
1277         }
1278
1279         ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
1280         if (!ctl)
1281                 return -ENOMEM;
1282         ctl->fw_name = wm_adsp_fw_text[dsp->fw];
1283         ctl->alg_region = *alg_region;
1284         ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
1285         if (!ctl->name) {
1286                 ret = -ENOMEM;
1287                 goto err_ctl;
1288         }
1289         ctl->enabled = 1;
1290         ctl->set = 0;
1291         ctl->ops.xget = wm_coeff_get;
1292         ctl->ops.xput = wm_coeff_put;
1293         ctl->dsp = dsp;
1294
1295         ctl->flags = flags;
1296         ctl->type = type;
1297         ctl->offset = offset;
1298         ctl->len = len;
1299         ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
1300         if (!ctl->cache) {
1301                 ret = -ENOMEM;
1302                 goto err_ctl_name;
1303         }
1304
1305         list_add(&ctl->list, &dsp->ctl_list);
1306
1307         if (flags & WMFW_CTL_FLAG_SYS)
1308                 return 0;
1309
1310         ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
1311         if (!ctl_work) {
1312                 ret = -ENOMEM;
1313                 goto err_ctl_cache;
1314         }
1315
1316         ctl_work->dsp = dsp;
1317         ctl_work->ctl = ctl;
1318         INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
1319         schedule_work(&ctl_work->work);
1320
1321         return 0;
1322
1323 err_ctl_cache:
1324         kfree(ctl->cache);
1325 err_ctl_name:
1326         kfree(ctl->name);
1327 err_ctl:
1328         kfree(ctl);
1329
1330         return ret;
1331 }
1332
1333 struct wm_coeff_parsed_alg {
1334         int id;
1335         const u8 *name;
1336         int name_len;
1337         int ncoeff;
1338 };
1339
1340 struct wm_coeff_parsed_coeff {
1341         int offset;
1342         int mem_type;
1343         const u8 *name;
1344         int name_len;
1345         int ctl_type;
1346         int flags;
1347         int len;
1348 };
1349
1350 static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
1351 {
1352         int length;
1353
1354         switch (bytes) {
1355         case 1:
1356                 length = **pos;
1357                 break;
1358         case 2:
1359                 length = le16_to_cpu(*((__le16 *)*pos));
1360                 break;
1361         default:
1362                 return 0;
1363         }
1364
1365         if (str)
1366                 *str = *pos + bytes;
1367
1368         *pos += ((length + bytes) + 3) & ~0x03;
1369
1370         return length;
1371 }
1372
1373 static int wm_coeff_parse_int(int bytes, const u8 **pos)
1374 {
1375         int val = 0;
1376
1377         switch (bytes) {
1378         case 2:
1379                 val = le16_to_cpu(*((__le16 *)*pos));
1380                 break;
1381         case 4:
1382                 val = le32_to_cpu(*((__le32 *)*pos));
1383                 break;
1384         default:
1385                 break;
1386         }
1387
1388         *pos += bytes;
1389
1390         return val;
1391 }
1392
1393 static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
1394                                       struct wm_coeff_parsed_alg *blk)
1395 {
1396         const struct wmfw_adsp_alg_data *raw;
1397
1398         switch (dsp->fw_ver) {
1399         case 0:
1400         case 1:
1401                 raw = (const struct wmfw_adsp_alg_data *)*data;
1402                 *data = raw->data;
1403
1404                 blk->id = le32_to_cpu(raw->id);
1405                 blk->name = raw->name;
1406                 blk->name_len = strlen(raw->name);
1407                 blk->ncoeff = le32_to_cpu(raw->ncoeff);
1408                 break;
1409         default:
1410                 blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
1411                 blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
1412                                                       &blk->name);
1413                 wm_coeff_parse_string(sizeof(u16), data, NULL);
1414                 blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
1415                 break;
1416         }
1417
1418         adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
1419         adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
1420         adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
1421 }
1422
1423 static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
1424                                         struct wm_coeff_parsed_coeff *blk)
1425 {
1426         const struct wmfw_adsp_coeff_data *raw;
1427         const u8 *tmp;
1428         int length;
1429
1430         switch (dsp->fw_ver) {
1431         case 0:
1432         case 1:
1433                 raw = (const struct wmfw_adsp_coeff_data *)*data;
1434                 *data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
1435
1436                 blk->offset = le16_to_cpu(raw->hdr.offset);
1437                 blk->mem_type = le16_to_cpu(raw->hdr.type);
1438                 blk->name = raw->name;
1439                 blk->name_len = strlen(raw->name);
1440                 blk->ctl_type = le16_to_cpu(raw->ctl_type);
1441                 blk->flags = le16_to_cpu(raw->flags);
1442                 blk->len = le32_to_cpu(raw->len);
1443                 break;
1444         default:
1445                 tmp = *data;
1446                 blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
1447                 blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
1448                 length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
1449                 blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
1450                                                       &blk->name);
1451                 wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
1452                 wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
1453                 blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
1454                 blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
1455                 blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
1456
1457                 *data = *data + sizeof(raw->hdr) + length;
1458                 break;
1459         }
1460
1461         adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
1462         adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
1463         adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
1464         adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
1465         adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
1466         adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
1467 }
1468
1469 static int wm_adsp_check_coeff_flags(struct wm_adsp *dsp,
1470                                 const struct wm_coeff_parsed_coeff *coeff_blk,
1471                                 unsigned int f_required,
1472                                 unsigned int f_illegal)
1473 {
1474         if ((coeff_blk->flags & f_illegal) ||
1475             ((coeff_blk->flags & f_required) != f_required)) {
1476                 adsp_err(dsp, "Illegal flags 0x%x for control type 0x%x\n",
1477                          coeff_blk->flags, coeff_blk->ctl_type);
1478                 return -EINVAL;
1479         }
1480
1481         return 0;
1482 }
1483
1484 static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
1485                                const struct wmfw_region *region)
1486 {
1487         struct wm_adsp_alg_region alg_region = {};
1488         struct wm_coeff_parsed_alg alg_blk;
1489         struct wm_coeff_parsed_coeff coeff_blk;
1490         const u8 *data = region->data;
1491         int i, ret;
1492
1493         wm_coeff_parse_alg(dsp, &data, &alg_blk);
1494         for (i = 0; i < alg_blk.ncoeff; i++) {
1495                 wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
1496
1497                 switch (coeff_blk.ctl_type) {
1498                 case SNDRV_CTL_ELEM_TYPE_BYTES:
1499                         break;
1500                 case WMFW_CTL_TYPE_ACKED:
1501                         if (coeff_blk.flags & WMFW_CTL_FLAG_SYS)
1502                                 continue;       /* ignore */
1503
1504                         ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
1505                                                 WMFW_CTL_FLAG_VOLATILE |
1506                                                 WMFW_CTL_FLAG_WRITEABLE |
1507                                                 WMFW_CTL_FLAG_READABLE,
1508                                                 0);
1509                         if (ret)
1510                                 return -EINVAL;
1511                         break;
1512                 case WMFW_CTL_TYPE_HOSTEVENT:
1513                         ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
1514                                                 WMFW_CTL_FLAG_SYS |
1515                                                 WMFW_CTL_FLAG_VOLATILE |
1516                                                 WMFW_CTL_FLAG_WRITEABLE |
1517                                                 WMFW_CTL_FLAG_READABLE,
1518                                                 0);
1519                         if (ret)
1520                                 return -EINVAL;
1521                         break;
1522                 default:
1523                         adsp_err(dsp, "Unknown control type: %d\n",
1524                                  coeff_blk.ctl_type);
1525                         return -EINVAL;
1526                 }
1527
1528                 alg_region.type = coeff_blk.mem_type;
1529                 alg_region.alg = alg_blk.id;
1530
1531                 ret = wm_adsp_create_control(dsp, &alg_region,
1532                                              coeff_blk.offset,
1533                                              coeff_blk.len,
1534                                              coeff_blk.name,
1535                                              coeff_blk.name_len,
1536                                              coeff_blk.flags,
1537                                              coeff_blk.ctl_type);
1538                 if (ret < 0)
1539                         adsp_err(dsp, "Failed to create control: %.*s, %d\n",
1540                                  coeff_blk.name_len, coeff_blk.name, ret);
1541         }
1542
1543         return 0;
1544 }
1545
1546 static int wm_adsp_load(struct wm_adsp *dsp)
1547 {
1548         LIST_HEAD(buf_list);
1549         const struct firmware *firmware;
1550         struct regmap *regmap = dsp->regmap;
1551         unsigned int pos = 0;
1552         const struct wmfw_header *header;
1553         const struct wmfw_adsp1_sizes *adsp1_sizes;
1554         const struct wmfw_adsp2_sizes *adsp2_sizes;
1555         const struct wmfw_footer *footer;
1556         const struct wmfw_region *region;
1557         const struct wm_adsp_region *mem;
1558         const char *region_name;
1559         char *file, *text = NULL;
1560         struct wm_adsp_buf *buf;
1561         unsigned int reg;
1562         int regions = 0;
1563         int ret, offset, type, sizes;
1564
1565         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1566         if (file == NULL)
1567                 return -ENOMEM;
1568
1569         snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
1570                  wm_adsp_fw[dsp->fw].file);
1571         file[PAGE_SIZE - 1] = '\0';
1572
1573         ret = request_firmware(&firmware, file, dsp->dev);
1574         if (ret != 0) {
1575                 adsp_err(dsp, "Failed to request '%s'\n", file);
1576                 goto out;
1577         }
1578         ret = -EINVAL;
1579
1580         pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1581         if (pos >= firmware->size) {
1582                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1583                          file, firmware->size);
1584                 goto out_fw;
1585         }
1586
1587         header = (void *)&firmware->data[0];
1588
1589         if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
1590                 adsp_err(dsp, "%s: invalid magic\n", file);
1591                 goto out_fw;
1592         }
1593
1594         switch (header->ver) {
1595         case 0:
1596                 adsp_warn(dsp, "%s: Depreciated file format %d\n",
1597                           file, header->ver);
1598                 break;
1599         case 1:
1600         case 2:
1601                 break;
1602         default:
1603                 adsp_err(dsp, "%s: unknown file format %d\n",
1604                          file, header->ver);
1605                 goto out_fw;
1606         }
1607
1608         adsp_info(dsp, "Firmware version: %d\n", header->ver);
1609         dsp->fw_ver = header->ver;
1610
1611         if (header->core != dsp->type) {
1612                 adsp_err(dsp, "%s: invalid core %d != %d\n",
1613                          file, header->core, dsp->type);
1614                 goto out_fw;
1615         }
1616
1617         switch (dsp->type) {
1618         case WMFW_ADSP1:
1619                 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1620                 adsp1_sizes = (void *)&(header[1]);
1621                 footer = (void *)&(adsp1_sizes[1]);
1622                 sizes = sizeof(*adsp1_sizes);
1623
1624                 adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
1625                          file, le32_to_cpu(adsp1_sizes->dm),
1626                          le32_to_cpu(adsp1_sizes->pm),
1627                          le32_to_cpu(adsp1_sizes->zm));
1628                 break;
1629
1630         case WMFW_ADSP2:
1631                 pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
1632                 adsp2_sizes = (void *)&(header[1]);
1633                 footer = (void *)&(adsp2_sizes[1]);
1634                 sizes = sizeof(*adsp2_sizes);
1635
1636                 adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
1637                          file, le32_to_cpu(adsp2_sizes->xm),
1638                          le32_to_cpu(adsp2_sizes->ym),
1639                          le32_to_cpu(adsp2_sizes->pm),
1640                          le32_to_cpu(adsp2_sizes->zm));
1641                 break;
1642
1643         default:
1644                 WARN(1, "Unknown DSP type");
1645                 goto out_fw;
1646         }
1647
1648         if (le32_to_cpu(header->len) != sizeof(*header) +
1649             sizes + sizeof(*footer)) {
1650                 adsp_err(dsp, "%s: unexpected header length %d\n",
1651                          file, le32_to_cpu(header->len));
1652                 goto out_fw;
1653         }
1654
1655         adsp_dbg(dsp, "%s: timestamp %llu\n", file,
1656                  le64_to_cpu(footer->timestamp));
1657
1658         while (pos < firmware->size &&
1659                pos - firmware->size > sizeof(*region)) {
1660                 region = (void *)&(firmware->data[pos]);
1661                 region_name = "Unknown";
1662                 reg = 0;
1663                 text = NULL;
1664                 offset = le32_to_cpu(region->offset) & 0xffffff;
1665                 type = be32_to_cpu(region->type) & 0xff;
1666                 mem = wm_adsp_find_region(dsp, type);
1667
1668                 switch (type) {
1669                 case WMFW_NAME_TEXT:
1670                         region_name = "Firmware name";
1671                         text = kzalloc(le32_to_cpu(region->len) + 1,
1672                                        GFP_KERNEL);
1673                         break;
1674                 case WMFW_ALGORITHM_DATA:
1675                         region_name = "Algorithm";
1676                         ret = wm_adsp_parse_coeff(dsp, region);
1677                         if (ret != 0)
1678                                 goto out_fw;
1679                         break;
1680                 case WMFW_INFO_TEXT:
1681                         region_name = "Information";
1682                         text = kzalloc(le32_to_cpu(region->len) + 1,
1683                                        GFP_KERNEL);
1684                         break;
1685                 case WMFW_ABSOLUTE:
1686                         region_name = "Absolute";
1687                         reg = offset;
1688                         break;
1689                 case WMFW_ADSP1_PM:
1690                 case WMFW_ADSP1_DM:
1691                 case WMFW_ADSP2_XM:
1692                 case WMFW_ADSP2_YM:
1693                 case WMFW_ADSP1_ZM:
1694                         region_name = wm_adsp_mem_region_name(type);
1695                         reg = wm_adsp_region_to_reg(mem, offset);
1696                         break;
1697                 default:
1698                         adsp_warn(dsp,
1699                                   "%s.%d: Unknown region type %x at %d(%x)\n",
1700                                   file, regions, type, pos, pos);
1701                         break;
1702                 }
1703
1704                 adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
1705                          regions, le32_to_cpu(region->len), offset,
1706                          region_name);
1707
1708                 if ((pos + le32_to_cpu(region->len) + sizeof(*region)) >
1709                     firmware->size) {
1710                         adsp_err(dsp,
1711                                  "%s.%d: %s region len %d bytes exceeds file length %zu\n",
1712                                  file, regions, region_name,
1713                                  le32_to_cpu(region->len), firmware->size);
1714                         ret = -EINVAL;
1715                         goto out_fw;
1716                 }
1717
1718                 if (text) {
1719                         memcpy(text, region->data, le32_to_cpu(region->len));
1720                         adsp_info(dsp, "%s: %s\n", file, text);
1721                         kfree(text);
1722                         text = NULL;
1723                 }
1724
1725                 if (reg) {
1726                         buf = wm_adsp_buf_alloc(region->data,
1727                                                 le32_to_cpu(region->len),
1728                                                 &buf_list);
1729                         if (!buf) {
1730                                 adsp_err(dsp, "Out of memory\n");
1731                                 ret = -ENOMEM;
1732                                 goto out_fw;
1733                         }
1734
1735                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
1736                                                      le32_to_cpu(region->len));
1737                         if (ret != 0) {
1738                                 adsp_err(dsp,
1739                                         "%s.%d: Failed to write %d bytes at %d in %s: %d\n",
1740                                         file, regions,
1741                                         le32_to_cpu(region->len), offset,
1742                                         region_name, ret);
1743                                 goto out_fw;
1744                         }
1745                 }
1746
1747                 pos += le32_to_cpu(region->len) + sizeof(*region);
1748                 regions++;
1749         }
1750
1751         ret = regmap_async_complete(regmap);
1752         if (ret != 0) {
1753                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1754                 goto out_fw;
1755         }
1756
1757         if (pos > firmware->size)
1758                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1759                           file, regions, pos - firmware->size);
1760
1761         wm_adsp_debugfs_save_wmfwname(dsp, file);
1762
1763 out_fw:
1764         regmap_async_complete(regmap);
1765         wm_adsp_buf_free(&buf_list);
1766         release_firmware(firmware);
1767         kfree(text);
1768 out:
1769         kfree(file);
1770
1771         return ret;
1772 }
1773
1774 static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
1775                                   const struct wm_adsp_alg_region *alg_region)
1776 {
1777         struct wm_coeff_ctl *ctl;
1778
1779         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1780                 if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
1781                     alg_region->alg == ctl->alg_region.alg &&
1782                     alg_region->type == ctl->alg_region.type) {
1783                         ctl->alg_region.base = alg_region->base;
1784                 }
1785         }
1786 }
1787
1788 static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
1789                                unsigned int pos, unsigned int len)
1790 {
1791         void *alg;
1792         int ret;
1793         __be32 val;
1794
1795         if (n_algs == 0) {
1796                 adsp_err(dsp, "No algorithms\n");
1797                 return ERR_PTR(-EINVAL);
1798         }
1799
1800         if (n_algs > 1024) {
1801                 adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
1802                 return ERR_PTR(-EINVAL);
1803         }
1804
1805         /* Read the terminator first to validate the length */
1806         ret = regmap_raw_read(dsp->regmap, pos + len, &val, sizeof(val));
1807         if (ret != 0) {
1808                 adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1809                         ret);
1810                 return ERR_PTR(ret);
1811         }
1812
1813         if (be32_to_cpu(val) != 0xbedead)
1814                 adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1815                           pos + len, be32_to_cpu(val));
1816
1817         alg = kzalloc(len * 2, GFP_KERNEL | GFP_DMA);
1818         if (!alg)
1819                 return ERR_PTR(-ENOMEM);
1820
1821         ret = regmap_raw_read(dsp->regmap, pos, alg, len * 2);
1822         if (ret != 0) {
1823                 adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
1824                 kfree(alg);
1825                 return ERR_PTR(ret);
1826         }
1827
1828         return alg;
1829 }
1830
1831 static struct wm_adsp_alg_region *
1832         wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
1833 {
1834         struct wm_adsp_alg_region *alg_region;
1835
1836         list_for_each_entry(alg_region, &dsp->alg_regions, list) {
1837                 if (id == alg_region->alg && type == alg_region->type)
1838                         return alg_region;
1839         }
1840
1841         return NULL;
1842 }
1843
1844 static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
1845                                                         int type, __be32 id,
1846                                                         __be32 base)
1847 {
1848         struct wm_adsp_alg_region *alg_region;
1849
1850         alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
1851         if (!alg_region)
1852                 return ERR_PTR(-ENOMEM);
1853
1854         alg_region->type = type;
1855         alg_region->alg = be32_to_cpu(id);
1856         alg_region->base = be32_to_cpu(base);
1857
1858         list_add_tail(&alg_region->list, &dsp->alg_regions);
1859
1860         if (dsp->fw_ver > 0)
1861                 wm_adsp_ctl_fixup_base(dsp, alg_region);
1862
1863         return alg_region;
1864 }
1865
1866 static void wm_adsp_free_alg_regions(struct wm_adsp *dsp)
1867 {
1868         struct wm_adsp_alg_region *alg_region;
1869
1870         while (!list_empty(&dsp->alg_regions)) {
1871                 alg_region = list_first_entry(&dsp->alg_regions,
1872                                               struct wm_adsp_alg_region,
1873                                               list);
1874                 list_del(&alg_region->list);
1875                 kfree(alg_region);
1876         }
1877 }
1878
1879 static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
1880 {
1881         struct wmfw_adsp1_id_hdr adsp1_id;
1882         struct wmfw_adsp1_alg_hdr *adsp1_alg;
1883         struct wm_adsp_alg_region *alg_region;
1884         const struct wm_adsp_region *mem;
1885         unsigned int pos, len;
1886         size_t n_algs;
1887         int i, ret;
1888
1889         mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
1890         if (WARN_ON(!mem))
1891                 return -EINVAL;
1892
1893         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
1894                               sizeof(adsp1_id));
1895         if (ret != 0) {
1896                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1897                          ret);
1898                 return ret;
1899         }
1900
1901         n_algs = be32_to_cpu(adsp1_id.n_algs);
1902         dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
1903         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1904                   dsp->fw_id,
1905                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
1906                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
1907                   be32_to_cpu(adsp1_id.fw.ver) & 0xff,
1908                   n_algs);
1909
1910         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1911                                            adsp1_id.fw.id, adsp1_id.zm);
1912         if (IS_ERR(alg_region))
1913                 return PTR_ERR(alg_region);
1914
1915         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1916                                            adsp1_id.fw.id, adsp1_id.dm);
1917         if (IS_ERR(alg_region))
1918                 return PTR_ERR(alg_region);
1919
1920         pos = sizeof(adsp1_id) / 2;
1921         len = (sizeof(*adsp1_alg) * n_algs) / 2;
1922
1923         adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1924         if (IS_ERR(adsp1_alg))
1925                 return PTR_ERR(adsp1_alg);
1926
1927         for (i = 0; i < n_algs; i++) {
1928                 adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1929                           i, be32_to_cpu(adsp1_alg[i].alg.id),
1930                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1931                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1932                           be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1933                           be32_to_cpu(adsp1_alg[i].dm),
1934                           be32_to_cpu(adsp1_alg[i].zm));
1935
1936                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1937                                                    adsp1_alg[i].alg.id,
1938                                                    adsp1_alg[i].dm);
1939                 if (IS_ERR(alg_region)) {
1940                         ret = PTR_ERR(alg_region);
1941                         goto out;
1942                 }
1943                 if (dsp->fw_ver == 0) {
1944                         if (i + 1 < n_algs) {
1945                                 len = be32_to_cpu(adsp1_alg[i + 1].dm);
1946                                 len -= be32_to_cpu(adsp1_alg[i].dm);
1947                                 len *= 4;
1948                                 wm_adsp_create_control(dsp, alg_region, 0,
1949                                                      len, NULL, 0, 0,
1950                                                      SNDRV_CTL_ELEM_TYPE_BYTES);
1951                         } else {
1952                                 adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
1953                                           be32_to_cpu(adsp1_alg[i].alg.id));
1954                         }
1955                 }
1956
1957                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1958                                                    adsp1_alg[i].alg.id,
1959                                                    adsp1_alg[i].zm);
1960                 if (IS_ERR(alg_region)) {
1961                         ret = PTR_ERR(alg_region);
1962                         goto out;
1963                 }
1964                 if (dsp->fw_ver == 0) {
1965                         if (i + 1 < n_algs) {
1966                                 len = be32_to_cpu(adsp1_alg[i + 1].zm);
1967                                 len -= be32_to_cpu(adsp1_alg[i].zm);
1968                                 len *= 4;
1969                                 wm_adsp_create_control(dsp, alg_region, 0,
1970                                                      len, NULL, 0, 0,
1971                                                      SNDRV_CTL_ELEM_TYPE_BYTES);
1972                         } else {
1973                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1974                                           be32_to_cpu(adsp1_alg[i].alg.id));
1975                         }
1976                 }
1977         }
1978
1979 out:
1980         kfree(adsp1_alg);
1981         return ret;
1982 }
1983
1984 static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
1985 {
1986         struct wmfw_adsp2_id_hdr adsp2_id;
1987         struct wmfw_adsp2_alg_hdr *adsp2_alg;
1988         struct wm_adsp_alg_region *alg_region;
1989         const struct wm_adsp_region *mem;
1990         unsigned int pos, len;
1991         size_t n_algs;
1992         int i, ret;
1993
1994         mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
1995         if (WARN_ON(!mem))
1996                 return -EINVAL;
1997
1998         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
1999                               sizeof(adsp2_id));
2000         if (ret != 0) {
2001                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
2002                          ret);
2003                 return ret;
2004         }
2005
2006         n_algs = be32_to_cpu(adsp2_id.n_algs);
2007         dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
2008         dsp->fw_id_version = be32_to_cpu(adsp2_id.fw.ver);
2009         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
2010                   dsp->fw_id,
2011                   (dsp->fw_id_version & 0xff0000) >> 16,
2012                   (dsp->fw_id_version & 0xff00) >> 8,
2013                   dsp->fw_id_version & 0xff,
2014                   n_algs);
2015
2016         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
2017                                            adsp2_id.fw.id, adsp2_id.xm);
2018         if (IS_ERR(alg_region))
2019                 return PTR_ERR(alg_region);
2020
2021         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
2022                                            adsp2_id.fw.id, adsp2_id.ym);
2023         if (IS_ERR(alg_region))
2024                 return PTR_ERR(alg_region);
2025
2026         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
2027                                            adsp2_id.fw.id, adsp2_id.zm);
2028         if (IS_ERR(alg_region))
2029                 return PTR_ERR(alg_region);
2030
2031         pos = sizeof(adsp2_id) / 2;
2032         len = (sizeof(*adsp2_alg) * n_algs) / 2;
2033
2034         adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
2035         if (IS_ERR(adsp2_alg))
2036                 return PTR_ERR(adsp2_alg);
2037
2038         for (i = 0; i < n_algs; i++) {
2039                 adsp_info(dsp,
2040                           "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
2041                           i, be32_to_cpu(adsp2_alg[i].alg.id),
2042                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
2043                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
2044                           be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
2045                           be32_to_cpu(adsp2_alg[i].xm),
2046                           be32_to_cpu(adsp2_alg[i].ym),
2047                           be32_to_cpu(adsp2_alg[i].zm));
2048
2049                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
2050                                                    adsp2_alg[i].alg.id,
2051                                                    adsp2_alg[i].xm);
2052                 if (IS_ERR(alg_region)) {
2053                         ret = PTR_ERR(alg_region);
2054                         goto out;
2055                 }
2056                 if (dsp->fw_ver == 0) {
2057                         if (i + 1 < n_algs) {
2058                                 len = be32_to_cpu(adsp2_alg[i + 1].xm);
2059                                 len -= be32_to_cpu(adsp2_alg[i].xm);
2060                                 len *= 4;
2061                                 wm_adsp_create_control(dsp, alg_region, 0,
2062                                                      len, NULL, 0, 0,
2063                                                      SNDRV_CTL_ELEM_TYPE_BYTES);
2064                         } else {
2065                                 adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
2066                                           be32_to_cpu(adsp2_alg[i].alg.id));
2067                         }
2068                 }
2069
2070                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
2071                                                    adsp2_alg[i].alg.id,
2072                                                    adsp2_alg[i].ym);
2073                 if (IS_ERR(alg_region)) {
2074                         ret = PTR_ERR(alg_region);
2075                         goto out;
2076                 }
2077                 if (dsp->fw_ver == 0) {
2078                         if (i + 1 < n_algs) {
2079                                 len = be32_to_cpu(adsp2_alg[i + 1].ym);
2080                                 len -= be32_to_cpu(adsp2_alg[i].ym);
2081                                 len *= 4;
2082                                 wm_adsp_create_control(dsp, alg_region, 0,
2083                                                      len, NULL, 0, 0,
2084                                                      SNDRV_CTL_ELEM_TYPE_BYTES);
2085                         } else {
2086                                 adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
2087                                           be32_to_cpu(adsp2_alg[i].alg.id));
2088                         }
2089                 }
2090
2091                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
2092                                                    adsp2_alg[i].alg.id,
2093                                                    adsp2_alg[i].zm);
2094                 if (IS_ERR(alg_region)) {
2095                         ret = PTR_ERR(alg_region);
2096                         goto out;
2097                 }
2098                 if (dsp->fw_ver == 0) {
2099                         if (i + 1 < n_algs) {
2100                                 len = be32_to_cpu(adsp2_alg[i + 1].zm);
2101                                 len -= be32_to_cpu(adsp2_alg[i].zm);
2102                                 len *= 4;
2103                                 wm_adsp_create_control(dsp, alg_region, 0,
2104                                                      len, NULL, 0, 0,
2105                                                      SNDRV_CTL_ELEM_TYPE_BYTES);
2106                         } else {
2107                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
2108                                           be32_to_cpu(adsp2_alg[i].alg.id));
2109                         }
2110                 }
2111         }
2112
2113 out:
2114         kfree(adsp2_alg);
2115         return ret;
2116 }
2117
2118 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
2119 {
2120         LIST_HEAD(buf_list);
2121         struct regmap *regmap = dsp->regmap;
2122         struct wmfw_coeff_hdr *hdr;
2123         struct wmfw_coeff_item *blk;
2124         const struct firmware *firmware;
2125         const struct wm_adsp_region *mem;
2126         struct wm_adsp_alg_region *alg_region;
2127         const char *region_name;
2128         int ret, pos, blocks, type, offset, reg;
2129         char *file;
2130         struct wm_adsp_buf *buf;
2131
2132         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
2133         if (file == NULL)
2134                 return -ENOMEM;
2135
2136         snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
2137                  wm_adsp_fw[dsp->fw].file);
2138         file[PAGE_SIZE - 1] = '\0';
2139
2140         ret = request_firmware(&firmware, file, dsp->dev);
2141         if (ret != 0) {
2142                 adsp_warn(dsp, "Failed to request '%s'\n", file);
2143                 ret = 0;
2144                 goto out;
2145         }
2146         ret = -EINVAL;
2147
2148         if (sizeof(*hdr) >= firmware->size) {
2149                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
2150                         file, firmware->size);
2151                 goto out_fw;
2152         }
2153
2154         hdr = (void *)&firmware->data[0];
2155         if (memcmp(hdr->magic, "WMDR", 4) != 0) {
2156                 adsp_err(dsp, "%s: invalid magic\n", file);
2157                 goto out_fw;
2158         }
2159
2160         switch (be32_to_cpu(hdr->rev) & 0xff) {
2161         case 1:
2162                 break;
2163         default:
2164                 adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
2165                          file, be32_to_cpu(hdr->rev) & 0xff);
2166                 ret = -EINVAL;
2167                 goto out_fw;
2168         }
2169
2170         adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
2171                 (le32_to_cpu(hdr->ver) >> 16) & 0xff,
2172                 (le32_to_cpu(hdr->ver) >>  8) & 0xff,
2173                 le32_to_cpu(hdr->ver) & 0xff);
2174
2175         pos = le32_to_cpu(hdr->len);
2176
2177         blocks = 0;
2178         while (pos < firmware->size &&
2179                pos - firmware->size > sizeof(*blk)) {
2180                 blk = (void *)(&firmware->data[pos]);
2181
2182                 type = le16_to_cpu(blk->type);
2183                 offset = le16_to_cpu(blk->offset);
2184
2185                 adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
2186                          file, blocks, le32_to_cpu(blk->id),
2187                          (le32_to_cpu(blk->ver) >> 16) & 0xff,
2188                          (le32_to_cpu(blk->ver) >>  8) & 0xff,
2189                          le32_to_cpu(blk->ver) & 0xff);
2190                 adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
2191                          file, blocks, le32_to_cpu(blk->len), offset, type);
2192
2193                 reg = 0;
2194                 region_name = "Unknown";
2195                 switch (type) {
2196                 case (WMFW_NAME_TEXT << 8):
2197                 case (WMFW_INFO_TEXT << 8):
2198                         break;
2199                 case (WMFW_ABSOLUTE << 8):
2200                         /*
2201                          * Old files may use this for global
2202                          * coefficients.
2203                          */
2204                         if (le32_to_cpu(blk->id) == dsp->fw_id &&
2205                             offset == 0) {
2206                                 region_name = "global coefficients";
2207                                 mem = wm_adsp_find_region(dsp, type);
2208                                 if (!mem) {
2209                                         adsp_err(dsp, "No ZM\n");
2210                                         break;
2211                                 }
2212                                 reg = wm_adsp_region_to_reg(mem, 0);
2213
2214                         } else {
2215                                 region_name = "register";
2216                                 reg = offset;
2217                         }
2218                         break;
2219
2220                 case WMFW_ADSP1_DM:
2221                 case WMFW_ADSP1_ZM:
2222                 case WMFW_ADSP2_XM:
2223                 case WMFW_ADSP2_YM:
2224                         adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
2225                                  file, blocks, le32_to_cpu(blk->len),
2226                                  type, le32_to_cpu(blk->id));
2227
2228                         mem = wm_adsp_find_region(dsp, type);
2229                         if (!mem) {
2230                                 adsp_err(dsp, "No base for region %x\n", type);
2231                                 break;
2232                         }
2233
2234                         alg_region = wm_adsp_find_alg_region(dsp, type,
2235                                                 le32_to_cpu(blk->id));
2236                         if (alg_region) {
2237                                 reg = alg_region->base;
2238                                 reg = wm_adsp_region_to_reg(mem, reg);
2239                                 reg += offset;
2240                         } else {
2241                                 adsp_err(dsp, "No %x for algorithm %x\n",
2242                                          type, le32_to_cpu(blk->id));
2243                         }
2244                         break;
2245
2246                 default:
2247                         adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
2248                                  file, blocks, type, pos);
2249                         break;
2250                 }
2251
2252                 if (reg) {
2253                         if ((pos + le32_to_cpu(blk->len) + sizeof(*blk)) >
2254                             firmware->size) {
2255                                 adsp_err(dsp,
2256                                          "%s.%d: %s region len %d bytes exceeds file length %zu\n",
2257                                          file, blocks, region_name,
2258                                          le32_to_cpu(blk->len),
2259                                          firmware->size);
2260                                 ret = -EINVAL;
2261                                 goto out_fw;
2262                         }
2263
2264                         buf = wm_adsp_buf_alloc(blk->data,
2265                                                 le32_to_cpu(blk->len),
2266                                                 &buf_list);
2267                         if (!buf) {
2268                                 adsp_err(dsp, "Out of memory\n");
2269                                 ret = -ENOMEM;
2270                                 goto out_fw;
2271                         }
2272
2273                         adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
2274                                  file, blocks, le32_to_cpu(blk->len),
2275                                  reg);
2276                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
2277                                                      le32_to_cpu(blk->len));
2278                         if (ret != 0) {
2279                                 adsp_err(dsp,
2280                                         "%s.%d: Failed to write to %x in %s: %d\n",
2281                                         file, blocks, reg, region_name, ret);
2282                         }
2283                 }
2284
2285                 pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
2286                 blocks++;
2287         }
2288
2289         ret = regmap_async_complete(regmap);
2290         if (ret != 0)
2291                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
2292
2293         if (pos > firmware->size)
2294                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
2295                           file, blocks, pos - firmware->size);
2296
2297         wm_adsp_debugfs_save_binname(dsp, file);
2298
2299 out_fw:
2300         regmap_async_complete(regmap);
2301         release_firmware(firmware);
2302         wm_adsp_buf_free(&buf_list);
2303 out:
2304         kfree(file);
2305         return ret;
2306 }
2307
2308 int wm_adsp1_init(struct wm_adsp *dsp)
2309 {
2310         INIT_LIST_HEAD(&dsp->alg_regions);
2311
2312         mutex_init(&dsp->pwr_lock);
2313
2314         return 0;
2315 }
2316 EXPORT_SYMBOL_GPL(wm_adsp1_init);
2317
2318 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
2319                    struct snd_kcontrol *kcontrol,
2320                    int event)
2321 {
2322         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2323         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2324         struct wm_adsp *dsp = &dsps[w->shift];
2325         struct wm_coeff_ctl *ctl;
2326         int ret;
2327         unsigned int val;
2328
2329         dsp->codec = codec;
2330
2331         mutex_lock(&dsp->pwr_lock);
2332
2333         switch (event) {
2334         case SND_SOC_DAPM_POST_PMU:
2335                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2336                                    ADSP1_SYS_ENA, ADSP1_SYS_ENA);
2337
2338                 /*
2339                  * For simplicity set the DSP clock rate to be the
2340                  * SYSCLK rate rather than making it configurable.
2341                  */
2342                 if (dsp->sysclk_reg) {
2343                         ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
2344                         if (ret != 0) {
2345                                 adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
2346                                 ret);
2347                                 goto err_mutex;
2348                         }
2349
2350                         val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
2351
2352                         ret = regmap_update_bits(dsp->regmap,
2353                                                  dsp->base + ADSP1_CONTROL_31,
2354                                                  ADSP1_CLK_SEL_MASK, val);
2355                         if (ret != 0) {
2356                                 adsp_err(dsp, "Failed to set clock rate: %d\n",
2357                                          ret);
2358                                 goto err_mutex;
2359                         }
2360                 }
2361
2362                 ret = wm_adsp_load(dsp);
2363                 if (ret != 0)
2364                         goto err_ena;
2365
2366                 ret = wm_adsp1_setup_algs(dsp);
2367                 if (ret != 0)
2368                         goto err_ena;
2369
2370                 ret = wm_adsp_load_coeff(dsp);
2371                 if (ret != 0)
2372                         goto err_ena;
2373
2374                 /* Initialize caches for enabled and unset controls */
2375                 ret = wm_coeff_init_control_caches(dsp);
2376                 if (ret != 0)
2377                         goto err_ena;
2378
2379                 /* Sync set controls */
2380                 ret = wm_coeff_sync_controls(dsp);
2381                 if (ret != 0)
2382                         goto err_ena;
2383
2384                 dsp->booted = true;
2385
2386                 /* Start the core running */
2387                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2388                                    ADSP1_CORE_ENA | ADSP1_START,
2389                                    ADSP1_CORE_ENA | ADSP1_START);
2390
2391                 dsp->running = true;
2392                 break;
2393
2394         case SND_SOC_DAPM_PRE_PMD:
2395                 dsp->running = false;
2396                 dsp->booted = false;
2397
2398                 /* Halt the core */
2399                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2400                                    ADSP1_CORE_ENA | ADSP1_START, 0);
2401
2402                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
2403                                    ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
2404
2405                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2406                                    ADSP1_SYS_ENA, 0);
2407
2408                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2409                         ctl->enabled = 0;
2410
2411
2412                 wm_adsp_free_alg_regions(dsp);
2413                 break;
2414
2415         default:
2416                 break;
2417         }
2418
2419         mutex_unlock(&dsp->pwr_lock);
2420
2421         return 0;
2422
2423 err_ena:
2424         regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2425                            ADSP1_SYS_ENA, 0);
2426 err_mutex:
2427         mutex_unlock(&dsp->pwr_lock);
2428
2429         return ret;
2430 }
2431 EXPORT_SYMBOL_GPL(wm_adsp1_event);
2432
2433 static int wm_adsp2_ena(struct wm_adsp *dsp)
2434 {
2435         unsigned int val;
2436         int ret, count;
2437
2438         ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
2439                                        ADSP2_SYS_ENA, ADSP2_SYS_ENA);
2440         if (ret != 0)
2441                 return ret;
2442
2443         /* Wait for the RAM to start, should be near instantaneous */
2444         for (count = 0; count < 10; ++count) {
2445                 ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
2446                 if (ret != 0)
2447                         return ret;
2448
2449                 if (val & ADSP2_RAM_RDY)
2450                         break;
2451
2452                 usleep_range(250, 500);
2453         }
2454
2455         if (!(val & ADSP2_RAM_RDY)) {
2456                 adsp_err(dsp, "Failed to start DSP RAM\n");
2457                 return -EBUSY;
2458         }
2459
2460         adsp_dbg(dsp, "RAM ready after %d polls\n", count);
2461
2462         return 0;
2463 }
2464
2465 static void wm_adsp2_boot_work(struct work_struct *work)
2466 {
2467         struct wm_adsp *dsp = container_of(work,
2468                                            struct wm_adsp,
2469                                            boot_work);
2470         int ret;
2471
2472         mutex_lock(&dsp->pwr_lock);
2473
2474         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2475                                  ADSP2_MEM_ENA, ADSP2_MEM_ENA);
2476         if (ret != 0)
2477                 goto err_mutex;
2478
2479         ret = wm_adsp2_ena(dsp);
2480         if (ret != 0)
2481                 goto err_mem;
2482
2483         ret = wm_adsp_load(dsp);
2484         if (ret != 0)
2485                 goto err_ena;
2486
2487         ret = wm_adsp2_setup_algs(dsp);
2488         if (ret != 0)
2489                 goto err_ena;
2490
2491         ret = wm_adsp_load_coeff(dsp);
2492         if (ret != 0)
2493                 goto err_ena;
2494
2495         /* Initialize caches for enabled and unset controls */
2496         ret = wm_coeff_init_control_caches(dsp);
2497         if (ret != 0)
2498                 goto err_ena;
2499
2500         /* Turn DSP back off until we are ready to run */
2501         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2502                                  ADSP2_SYS_ENA, 0);
2503         if (ret != 0)
2504                 goto err_ena;
2505
2506         dsp->booted = true;
2507
2508         mutex_unlock(&dsp->pwr_lock);
2509
2510         return;
2511
2512 err_ena:
2513         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2514                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2515 err_mem:
2516         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2517                            ADSP2_MEM_ENA, 0);
2518 err_mutex:
2519         mutex_unlock(&dsp->pwr_lock);
2520 }
2521
2522 static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
2523 {
2524         int ret;
2525
2526         ret = regmap_update_bits_async(dsp->regmap,
2527                                        dsp->base + ADSP2_CLOCKING,
2528                                        ADSP2_CLK_SEL_MASK,
2529                                        freq << ADSP2_CLK_SEL_SHIFT);
2530         if (ret != 0)
2531                 adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
2532 }
2533
2534 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
2535                            struct snd_ctl_elem_value *ucontrol)
2536 {
2537         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
2538         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
2539
2540         ucontrol->value.integer.value[0] = dsp->preloaded;
2541
2542         return 0;
2543 }
2544 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
2545
2546 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
2547                            struct snd_ctl_elem_value *ucontrol)
2548 {
2549         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
2550         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
2551         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
2552         struct soc_mixer_control *mc =
2553                 (struct soc_mixer_control *)kcontrol->private_value;
2554         char preload[32];
2555
2556         snprintf(preload, ARRAY_SIZE(preload), "DSP%d Preload", mc->shift);
2557
2558         dsp->preloaded = ucontrol->value.integer.value[0];
2559
2560         if (ucontrol->value.integer.value[0])
2561                 snd_soc_dapm_force_enable_pin(dapm, preload);
2562         else
2563                 snd_soc_dapm_disable_pin(dapm, preload);
2564
2565         snd_soc_dapm_sync(dapm);
2566
2567         return 0;
2568 }
2569 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
2570
2571 int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
2572                          struct snd_kcontrol *kcontrol, int event,
2573                          unsigned int freq)
2574 {
2575         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2576         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2577         struct wm_adsp *dsp = &dsps[w->shift];
2578         struct wm_coeff_ctl *ctl;
2579
2580         switch (event) {
2581         case SND_SOC_DAPM_PRE_PMU:
2582                 wm_adsp2_set_dspclk(dsp, freq);
2583                 queue_work(system_unbound_wq, &dsp->boot_work);
2584                 break;
2585         case SND_SOC_DAPM_PRE_PMD:
2586                 mutex_lock(&dsp->pwr_lock);
2587
2588                 wm_adsp_debugfs_clear(dsp);
2589
2590                 dsp->fw_id = 0;
2591                 dsp->fw_id_version = 0;
2592
2593                 dsp->booted = false;
2594
2595                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2596                                    ADSP2_MEM_ENA, 0);
2597
2598                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2599                         ctl->enabled = 0;
2600
2601                 wm_adsp_free_alg_regions(dsp);
2602
2603                 mutex_unlock(&dsp->pwr_lock);
2604
2605                 adsp_dbg(dsp, "Shutdown complete\n");
2606                 break;
2607         default:
2608                 break;
2609         }
2610
2611         return 0;
2612 }
2613 EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
2614
2615 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
2616                    struct snd_kcontrol *kcontrol, int event)
2617 {
2618         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2619         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2620         struct wm_adsp *dsp = &dsps[w->shift];
2621         int ret;
2622
2623         switch (event) {
2624         case SND_SOC_DAPM_POST_PMU:
2625                 flush_work(&dsp->boot_work);
2626
2627                 mutex_lock(&dsp->pwr_lock);
2628
2629                 if (!dsp->booted) {
2630                         ret = -EIO;
2631                         goto err;
2632                 }
2633
2634                 ret = wm_adsp2_ena(dsp);
2635                 if (ret != 0)
2636                         goto err;
2637
2638                 /* Sync set controls */
2639                 ret = wm_coeff_sync_controls(dsp);
2640                 if (ret != 0)
2641                         goto err;
2642
2643                 ret = regmap_update_bits(dsp->regmap,
2644                                          dsp->base + ADSP2_CONTROL,
2645                                          ADSP2_CORE_ENA | ADSP2_START,
2646                                          ADSP2_CORE_ENA | ADSP2_START);
2647                 if (ret != 0)
2648                         goto err;
2649
2650                 if (wm_adsp_fw[dsp->fw].num_caps != 0) {
2651                         ret = wm_adsp_buffer_init(dsp);
2652                         if (ret < 0)
2653                                 goto err;
2654                 }
2655
2656                 dsp->running = true;
2657
2658                 mutex_unlock(&dsp->pwr_lock);
2659
2660                 break;
2661
2662         case SND_SOC_DAPM_PRE_PMD:
2663                 /* Tell the firmware to cleanup */
2664                 wm_adsp_signal_event_controls(dsp, WM_ADSP_FW_EVENT_SHUTDOWN);
2665
2666                 /* Log firmware state, it can be useful for analysis */
2667                 wm_adsp2_show_fw_status(dsp);
2668
2669                 mutex_lock(&dsp->pwr_lock);
2670
2671                 dsp->running = false;
2672
2673                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2674                                    ADSP2_CORE_ENA | ADSP2_START, 0);
2675
2676                 /* Make sure DMAs are quiesced */
2677                 regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
2678                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
2679                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
2680
2681                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2682                                    ADSP2_SYS_ENA, 0);
2683
2684                 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2685                         wm_adsp_buffer_free(dsp);
2686
2687                 mutex_unlock(&dsp->pwr_lock);
2688
2689                 adsp_dbg(dsp, "Execution stopped\n");
2690                 break;
2691
2692         default:
2693                 break;
2694         }
2695
2696         return 0;
2697 err:
2698         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2699                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2700         mutex_unlock(&dsp->pwr_lock);
2701         return ret;
2702 }
2703 EXPORT_SYMBOL_GPL(wm_adsp2_event);
2704
2705 int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2706 {
2707         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
2708         char preload[32];
2709
2710         snprintf(preload, ARRAY_SIZE(preload), "DSP%d Preload", dsp->num);
2711         snd_soc_dapm_disable_pin(dapm, preload);
2712
2713         wm_adsp2_init_debugfs(dsp, codec);
2714
2715         dsp->codec = codec;
2716
2717         return snd_soc_add_codec_controls(codec,
2718                                           &wm_adsp_fw_controls[dsp->num - 1],
2719                                           1);
2720 }
2721 EXPORT_SYMBOL_GPL(wm_adsp2_codec_probe);
2722
2723 int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2724 {
2725         wm_adsp2_cleanup_debugfs(dsp);
2726
2727         return 0;
2728 }
2729 EXPORT_SYMBOL_GPL(wm_adsp2_codec_remove);
2730
2731 int wm_adsp2_init(struct wm_adsp *dsp)
2732 {
2733         int ret;
2734
2735         /*
2736          * Disable the DSP memory by default when in reset for a small
2737          * power saving.
2738          */
2739         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2740                                  ADSP2_MEM_ENA, 0);
2741         if (ret != 0) {
2742                 adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
2743                 return ret;
2744         }
2745
2746         INIT_LIST_HEAD(&dsp->alg_regions);
2747         INIT_LIST_HEAD(&dsp->ctl_list);
2748         INIT_WORK(&dsp->boot_work, wm_adsp2_boot_work);
2749
2750         mutex_init(&dsp->pwr_lock);
2751
2752         return 0;
2753 }
2754 EXPORT_SYMBOL_GPL(wm_adsp2_init);
2755
2756 void wm_adsp2_remove(struct wm_adsp *dsp)
2757 {
2758         struct wm_coeff_ctl *ctl;
2759
2760         while (!list_empty(&dsp->ctl_list)) {
2761                 ctl = list_first_entry(&dsp->ctl_list, struct wm_coeff_ctl,
2762                                         list);
2763                 list_del(&ctl->list);
2764                 wm_adsp_free_ctl_blk(ctl);
2765         }
2766 }
2767 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
2768
2769 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
2770 {
2771         return compr->buf != NULL;
2772 }
2773
2774 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
2775 {
2776         /*
2777          * Note this will be more complex once each DSP can support multiple
2778          * streams
2779          */
2780         if (!compr->dsp->buffer)
2781                 return -EINVAL;
2782
2783         compr->buf = compr->dsp->buffer;
2784         compr->buf->compr = compr;
2785
2786         return 0;
2787 }
2788
2789 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
2790 {
2791         if (!compr)
2792                 return;
2793
2794         /* Wake the poll so it can see buffer is no longer attached */
2795         if (compr->stream)
2796                 snd_compr_fragment_elapsed(compr->stream);
2797
2798         if (wm_adsp_compr_attached(compr)) {
2799                 compr->buf->compr = NULL;
2800                 compr->buf = NULL;
2801         }
2802 }
2803
2804 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
2805 {
2806         struct wm_adsp_compr *compr;
2807         int ret = 0;
2808
2809         mutex_lock(&dsp->pwr_lock);
2810
2811         if (wm_adsp_fw[dsp->fw].num_caps == 0) {
2812                 adsp_err(dsp, "Firmware does not support compressed API\n");
2813                 ret = -ENXIO;
2814                 goto out;
2815         }
2816
2817         if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
2818                 adsp_err(dsp, "Firmware does not support stream direction\n");
2819                 ret = -EINVAL;
2820                 goto out;
2821         }
2822
2823         if (dsp->compr) {
2824                 /* It is expect this limitation will be removed in future */
2825                 adsp_err(dsp, "Only a single stream supported per DSP\n");
2826                 ret = -EBUSY;
2827                 goto out;
2828         }
2829
2830         compr = kzalloc(sizeof(*compr), GFP_KERNEL);
2831         if (!compr) {
2832                 ret = -ENOMEM;
2833                 goto out;
2834         }
2835
2836         compr->dsp = dsp;
2837         compr->stream = stream;
2838
2839         dsp->compr = compr;
2840
2841         stream->runtime->private_data = compr;
2842
2843 out:
2844         mutex_unlock(&dsp->pwr_lock);
2845
2846         return ret;
2847 }
2848 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
2849
2850 int wm_adsp_compr_free(struct snd_compr_stream *stream)
2851 {
2852         struct wm_adsp_compr *compr = stream->runtime->private_data;
2853         struct wm_adsp *dsp = compr->dsp;
2854
2855         mutex_lock(&dsp->pwr_lock);
2856
2857         wm_adsp_compr_detach(compr);
2858         dsp->compr = NULL;
2859
2860         kfree(compr->raw_buf);
2861         kfree(compr);
2862
2863         mutex_unlock(&dsp->pwr_lock);
2864
2865         return 0;
2866 }
2867 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
2868
2869 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
2870                                       struct snd_compr_params *params)
2871 {
2872         struct wm_adsp_compr *compr = stream->runtime->private_data;
2873         struct wm_adsp *dsp = compr->dsp;
2874         const struct wm_adsp_fw_caps *caps;
2875         const struct snd_codec_desc *desc;
2876         int i, j;
2877
2878         if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
2879             params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
2880             params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
2881             params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
2882             params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
2883                 adsp_err(dsp, "Invalid buffer fragsize=%d fragments=%d\n",
2884                          params->buffer.fragment_size,
2885                          params->buffer.fragments);
2886
2887                 return -EINVAL;
2888         }
2889
2890         for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
2891                 caps = &wm_adsp_fw[dsp->fw].caps[i];
2892                 desc = &caps->desc;
2893
2894                 if (caps->id != params->codec.id)
2895                         continue;
2896
2897                 if (stream->direction == SND_COMPRESS_PLAYBACK) {
2898                         if (desc->max_ch < params->codec.ch_out)
2899                                 continue;
2900                 } else {
2901                         if (desc->max_ch < params->codec.ch_in)
2902                                 continue;
2903                 }
2904
2905                 if (!(desc->formats & (1 << params->codec.format)))
2906                         continue;
2907
2908                 for (j = 0; j < desc->num_sample_rates; ++j)
2909                         if (desc->sample_rates[j] == params->codec.sample_rate)
2910                                 return 0;
2911         }
2912
2913         adsp_err(dsp, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
2914                  params->codec.id, params->codec.ch_in, params->codec.ch_out,
2915                  params->codec.sample_rate, params->codec.format);
2916         return -EINVAL;
2917 }
2918
2919 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
2920 {
2921         return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
2922 }
2923
2924 int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
2925                              struct snd_compr_params *params)
2926 {
2927         struct wm_adsp_compr *compr = stream->runtime->private_data;
2928         unsigned int size;
2929         int ret;
2930
2931         ret = wm_adsp_compr_check_params(stream, params);
2932         if (ret)
2933                 return ret;
2934
2935         compr->size = params->buffer;
2936
2937         adsp_dbg(compr->dsp, "fragment_size=%d fragments=%d\n",
2938                  compr->size.fragment_size, compr->size.fragments);
2939
2940         size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
2941         compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
2942         if (!compr->raw_buf)
2943                 return -ENOMEM;
2944
2945         compr->sample_rate = params->codec.sample_rate;
2946
2947         return 0;
2948 }
2949 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
2950
2951 int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
2952                            struct snd_compr_caps *caps)
2953 {
2954         struct wm_adsp_compr *compr = stream->runtime->private_data;
2955         int fw = compr->dsp->fw;
2956         int i;
2957
2958         if (wm_adsp_fw[fw].caps) {
2959                 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
2960                         caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
2961
2962                 caps->num_codecs = i;
2963                 caps->direction = wm_adsp_fw[fw].compr_direction;
2964
2965                 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
2966                 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
2967                 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
2968                 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
2969         }
2970
2971         return 0;
2972 }
2973 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
2974
2975 static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
2976                                    unsigned int mem_addr,
2977                                    unsigned int num_words, u32 *data)
2978 {
2979         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2980         unsigned int i, reg;
2981         int ret;
2982
2983         if (!mem)
2984                 return -EINVAL;
2985
2986         reg = wm_adsp_region_to_reg(mem, mem_addr);
2987
2988         ret = regmap_raw_read(dsp->regmap, reg, data,
2989                               sizeof(*data) * num_words);
2990         if (ret < 0)
2991                 return ret;
2992
2993         for (i = 0; i < num_words; ++i)
2994                 data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
2995
2996         return 0;
2997 }
2998
2999 static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
3000                                          unsigned int mem_addr, u32 *data)
3001 {
3002         return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
3003 }
3004
3005 static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
3006                                    unsigned int mem_addr, u32 data)
3007 {
3008         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
3009         unsigned int reg;
3010
3011         if (!mem)
3012                 return -EINVAL;
3013
3014         reg = wm_adsp_region_to_reg(mem, mem_addr);
3015
3016         data = cpu_to_be32(data & 0x00ffffffu);
3017
3018         return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
3019 }
3020
3021 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
3022                                       unsigned int field_offset, u32 *data)
3023 {
3024         return wm_adsp_read_data_word(buf->dsp, WMFW_ADSP2_XM,
3025                                       buf->host_buf_ptr + field_offset, data);
3026 }
3027
3028 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
3029                                        unsigned int field_offset, u32 data)
3030 {
3031         return wm_adsp_write_data_word(buf->dsp, WMFW_ADSP2_XM,
3032                                        buf->host_buf_ptr + field_offset, data);
3033 }
3034
3035 static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)
3036 {
3037         struct wm_adsp_alg_region *alg_region;
3038         struct wm_adsp *dsp = buf->dsp;
3039         u32 xmalg, addr, magic;
3040         int i, ret;
3041
3042         alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
3043         xmalg = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
3044
3045         addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
3046         ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
3047         if (ret < 0)
3048                 return ret;
3049
3050         if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
3051                 return -EINVAL;
3052
3053         addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
3054         for (i = 0; i < 5; ++i) {
3055                 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
3056                                              &buf->host_buf_ptr);
3057                 if (ret < 0)
3058                         return ret;
3059
3060                 if (buf->host_buf_ptr)
3061                         break;
3062
3063                 usleep_range(1000, 2000);
3064         }
3065
3066         if (!buf->host_buf_ptr)
3067                 return -EIO;
3068
3069         adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
3070
3071         return 0;
3072 }
3073
3074 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
3075 {
3076         const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
3077         struct wm_adsp_buffer_region *region;
3078         u32 offset = 0;
3079         int i, ret;
3080
3081         for (i = 0; i < caps->num_regions; ++i) {
3082                 region = &buf->regions[i];
3083
3084                 region->offset = offset;
3085                 region->mem_type = caps->region_defs[i].mem_type;
3086
3087                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
3088                                           &region->base_addr);
3089                 if (ret < 0)
3090                         return ret;
3091
3092                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
3093                                           &offset);
3094                 if (ret < 0)
3095                         return ret;
3096
3097                 region->cumulative_size = offset;
3098
3099                 adsp_dbg(buf->dsp,
3100                          "region=%d type=%d base=%04x off=%04x size=%04x\n",
3101                          i, region->mem_type, region->base_addr,
3102                          region->offset, region->cumulative_size);
3103         }
3104
3105         return 0;
3106 }
3107
3108 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
3109 {
3110         struct wm_adsp_compr_buf *buf;
3111         int ret;
3112
3113         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
3114         if (!buf)
3115                 return -ENOMEM;
3116
3117         buf->dsp = dsp;
3118         buf->read_index = -1;
3119         buf->irq_count = 0xFFFFFFFF;
3120
3121         ret = wm_adsp_buffer_locate(buf);
3122         if (ret < 0) {
3123                 adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);
3124                 goto err_buffer;
3125         }
3126
3127         buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,
3128                                sizeof(*buf->regions), GFP_KERNEL);
3129         if (!buf->regions) {
3130                 ret = -ENOMEM;
3131                 goto err_buffer;
3132         }
3133
3134         ret = wm_adsp_buffer_populate(buf);
3135         if (ret < 0) {
3136                 adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);
3137                 goto err_regions;
3138         }
3139
3140         dsp->buffer = buf;
3141
3142         return 0;
3143